eta/DSI is a fully integrated, dynamic, nonlinear, finite element software package used to create, analyze, edit, and visualize dynamic, nonlinear engineering problems. The software includes an integrated preprocessor, post processor, and solver. DSI is a complete CAE software toolset for applying theory and engineering principles common in areas of mechanical and structural engineering. eta/DSI provides a single package for use in analysis of multi-body dynamics problems, linear static, nonlinear static, and dynamic nonlinear finite element analysis.
eta/DSI's strength lies in its ability to integrate problems that are treated as multidisciplinary by other software packages. eta/DSI allows the user to combine multi-body dynamics problems with structural finite element analysis problems, providing real-time kinematics or dynamics as well as the stress or strain response of the structure in real time.
DSI/PrePost is a general-purpose, full-featured modeling software for the construction and results display of finite element models. This module allows users to import CAD data, construct CAD data, import existing FE models, and construct the geometry and mesh required for finite element analysis. All boundary conditions and material properties may also be created in this module. Output of the model in various finite element solver formats is available.